15 riddles

All riddles

Shaded Part: The Pinwheel Video
Genius Visual

Shaded Part: The Pinwheel

Two Candles: Twice as Tall Video
Genius Numbers

Two Candles: Twice as Tall

Glass Overlay: Busy Cards Video
Genius Visual

Glass Overlay: Busy Cards

Longest Roman Numeral Video
Genius Numbers

Longest Roman Numeral

Split 8 Litres Video
Genius Logic

Split 8 Litres

How Many Routes: Pass the Lantern Video
Genius Numbers

How Many Routes: Pass the Lantern

Hands Apart: 9:45 Video
Genius Numbers

Hands Apart: 9:45

Climbing Robot Video
Genius Logic

Climbing Robot

Diamond Window Video
Genius Visual

Diamond Window

Dim or Bright Video
Genius Logic

Dim or Bright

Fewest Tokens: Pay 24 Video
Genius Numbers

Fewest Tokens: Pay 24

Twelve Glowing Dots Picture
Genius Spatial

Twelve Glowing Dots

I am a 4-digit number. My first digit is twice my last. My second digit is my first and last added together. All my digi…

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Genius Numbers

The Four Clues

Five Words Share a Secret Video
Genius Words

Five Words Share a Secret

I am a number. Spell me out in English and my letters are in perfect alphabetical order. What number am I?

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Genius Words

The Alphabet Number